WO2021184602A1 - Écrou auto-serrant sans filetage et procédé de serrage et de desserrage automatiques - Google Patents

Écrou auto-serrant sans filetage et procédé de serrage et de desserrage automatiques Download PDF

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Publication number
WO2021184602A1
WO2021184602A1 PCT/CN2020/101107 CN2020101107W WO2021184602A1 WO 2021184602 A1 WO2021184602 A1 WO 2021184602A1 CN 2020101107 W CN2020101107 W CN 2020101107W WO 2021184602 A1 WO2021184602 A1 WO 2021184602A1
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WO
WIPO (PCT)
Prior art keywords
nut
tightening
self
clip
thread
Prior art date
Application number
PCT/CN2020/101107
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English (en)
Chinese (zh)
Inventor
莫崇规
Original Assignee
莫崇规
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 莫崇规 filed Critical 莫崇规
Publication of WO2021184602A1 publication Critical patent/WO2021184602A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B2/00—Friction-grip releasable fastenings
    • F16B2/02—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening
    • F16B2/06—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action
    • F16B2/065—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action using screw-thread elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B23/00—Specially shaped nuts or heads of bolts or screws for rotations by a tool
    • F16B23/0007—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool
    • F16B23/0038—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool substantially prismatic with up to six edges, e.g. triangular, square, pentagonal, Allen-type cross-sections

Definitions

  • the present invention relates to a nut, and more specifically, to a self-tightening thread-free nut.
  • the self-tightening thread-free nut of the present invention does not need to open the thread on the connected screw, steel bar, pipe and other parts, as long as the outer nut is rotated, the tightening or loosening can be automatically completed, and it can be used for fastening screws, steel bars, pipes and other parts. Or docking.
  • the self-tightening thread-free nut of the present invention has the following advantages: no need to open the thread, as long as the outer nut is rotated, the tightening or loosening can be automatically completed, which saves costs and improves work efficiency.
  • the technical solution of the present invention includes: an outer nut, a middle nut, a clip and a self-tightening nut; the inner side of the outer nut has a thread, which is screwed with the outer thread of the middle nut; the outer side of the middle nut has a thread, and the outer thread
  • the inner threads of the nuts are screwed together, and the center of the middle nut has a conical hole; the outer surface of the clip is a conical surface, and the clip can slide in the conical hole of the middle nut;
  • the inner threads are screwed together.
  • the automatic tightening method of self-tightening non-threaded nuts includes the following steps:
  • the middle nut drives the clip closer to the self-tightening nut
  • the clamping piece tightens the self-tightening nut and drives the self-tightening nut to rotate until the outer nut is fastened to the connected parts and stops rotating.
  • the automatic loosening method of self-tightening non-threaded nuts includes the following steps:
  • One end of the outer nut has an outer nut limit rib to restrict the self-tightening nut or intermediate nut from rotating within the inner range of the outer nut limit rib; the conical hole in the center of the middle nut has an intermediate nut limit rib to restrict the clip from being relative to the middle The nut turns.
  • a spring or washer is installed between the clip and the self-tightening nut.
  • the inner surface of the clip has concavo-convex patterns to enhance the friction and bite force between the clip and the screw.
  • the middle nut and the clip can be connected in series in multiple numbers.
  • the number of clips is 2 to 7 pieces.
  • the self-tightening nut is fixed on the outer nut and cannot rotate between the self-tightening nut and the outer nut.
  • Two self-tightening non-threaded nuts are symmetrically connected together as a nut or a connecting sleeve; the middle nut and clip are tightened to each other, which can replace the self-tightening nut.
  • the shape of the center hole is hexagon, or the outer end is hexagon, which is convenient for rotating and installing with tools.
  • the beneficial effect of the technical solution of the present invention is: no need to open the wire, as long as the outer nut is rotated, the tightening or loosening can be automatically completed, which saves costs and improves work efficiency.
  • Figure 1 is a cross-sectional schematic diagram of a self-tightening thread-free nut:
  • Figure 2 is an exploded schematic diagram of a self-tightening thread-free nut:
  • Figure 3 is a schematic diagram of the assembly of a self-tightening thread-free nut:
  • Figure 4 shows the butt joint intention of self-tightening non-threaded nuts
  • the self-tightening thread-free nut of the present invention includes: an outer nut 1, a middle nut 2, a clip 3, and a self-tightening nut 4;
  • the outer threads of the nut 2 are screwed together;
  • the middle nut 2 has threads on the outer side, which are screwed together with the inner threads of the outer nut 1, and the center of the middle nut 2 has a conical hole;
  • the outer surface of the clip 3 is a conical surface, and the clip 3 can slide in the conical hole of the middle nut 2;
  • the self-tightening nut 4 has threads on the outside, which are screwed with the inner threads of the outer nut 1.
  • the automatic tightening method of the self-tightening thread-free nut of the present invention includes the following steps:
  • the middle nut 2 drives the clip 3 close to the self-tightening nut 4;
  • the automatic loosening method of the self-tightening non-threaded nut of the present invention includes the following steps:
  • the self-tightening threadless nut of the present invention has an outer nut limiting rib 11 at one end of the outer nut 1 to limit the self-tightening nut 4 or the intermediate nut 2 within the outer nut limiting rib 11 Internal rotation; the conical hole in the center of the middle nut 2 has a middle nut limiting rib 21, which restricts the clip 3 from rotating relative to the middle nut 2.
  • Embodiment 5 as shown in FIG. 1, the self-tightening thread-free nut of the present invention is provided with a spring or a washer between the clip 3 and the self-tightening nut 4.
  • Embodiment 6 as shown in Fig. 2 of the self-tightening thread-free nut of the present invention, the inner surface of the clip 3 has concavities and convexities to enhance the friction and bite force between the clip 3 and the screw.
  • Embodiment 7 as shown in FIG. 1, the self-tightening thread-free nut of the present invention, the middle nut 2 and the clip 3 can be used in series in multiples.
  • the number of the clip 3 is 2 to 7 pieces.
  • Embodiment 9 as shown in FIG. 1, the self-tightening screw-free nut of the present invention is shown in which the self-tightening nut 4 is fixed on the outer nut 1, and the self-tightening nut 4 and the outer nut 1 cannot rotate.
  • Embodiment 10 as shown in Figure 4, the self-tightening thread-free nut of the present invention, two self-tightening thread-free nuts are symmetrically connected together as a nut or a connecting sleeve; the middle nut 2 and the clip 3 are tightened to each other, which can be substituted Self-tightening nut 4.
  • the self-tightening thread-free nut of the present invention has a hole in the center of the self-tightening nut 4, and the shape of the center hole is hexagonal, or the outer end is hexagonal, which is convenient for rotating and installing with tools.
  • the beneficial effect of the technical solution of the present invention is: no need to open the wire, as long as the outer nut is rotated, the tightening or loosening can be automatically completed, which saves costs and improves work efficiency.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bolts, Nuts, And Washers (AREA)
  • Clamps And Clips (AREA)

Abstract

L'invention concerne un écrou auto-serrant sans filetage, constitué d'un écrou externe (1), d'un écrou intermédiaire (2), de pièces de serrage (3) et d'un écrou auto-serrant (4). Le serrage ou le desserrage peut être effectué automatiquement en faisant tourner uniquement l'écrou externe (1) sans former de filetage, ce qui permet de réduire le coût et d'améliorer l'efficacité de travail.
PCT/CN2020/101107 2020-03-17 2020-07-09 Écrou auto-serrant sans filetage et procédé de serrage et de desserrage automatiques WO2021184602A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010185006.6 2020-03-17
CN202010185006.6A CN111120464A (zh) 2020-03-17 2020-03-17 自紧免丝螺母及自动拧紧和拧松方法

Publications (1)

Publication Number Publication Date
WO2021184602A1 true WO2021184602A1 (fr) 2021-09-23

Family

ID=70493710

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/101107 WO2021184602A1 (fr) 2020-03-17 2020-07-09 Écrou auto-serrant sans filetage et procédé de serrage et de desserrage automatiques

Country Status (2)

Country Link
CN (1) CN111120464A (fr)
WO (1) WO2021184602A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111120464A (zh) * 2020-03-17 2020-05-08 莫崇规 自紧免丝螺母及自动拧紧和拧松方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11325342A (ja) * 1998-05-15 1999-11-26 Ihara Science Corp 管継手
CN101113798A (zh) * 2002-08-15 2008-01-30 徐长祥 挤压连接管接件
CN201093138Y (zh) * 2007-08-08 2008-07-30 王平忠 高压胶管接头
CN104329520A (zh) * 2014-10-10 2015-02-04 洛阳中广石油化工机械设备有限公司 卡套式管接头
CN104588709A (zh) * 2014-11-24 2015-05-06 常州市永联管桩有限公司 一种防止筒夹转动的刀具夹头
CN111120464A (zh) * 2020-03-17 2020-05-08 莫崇规 自紧免丝螺母及自动拧紧和拧松方法
CN211666981U (zh) * 2020-03-17 2020-10-13 莫崇规 自紧免丝螺母

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11325342A (ja) * 1998-05-15 1999-11-26 Ihara Science Corp 管継手
CN101113798A (zh) * 2002-08-15 2008-01-30 徐长祥 挤压连接管接件
CN201093138Y (zh) * 2007-08-08 2008-07-30 王平忠 高压胶管接头
CN104329520A (zh) * 2014-10-10 2015-02-04 洛阳中广石油化工机械设备有限公司 卡套式管接头
CN104588709A (zh) * 2014-11-24 2015-05-06 常州市永联管桩有限公司 一种防止筒夹转动的刀具夹头
CN111120464A (zh) * 2020-03-17 2020-05-08 莫崇规 自紧免丝螺母及自动拧紧和拧松方法
CN211666981U (zh) * 2020-03-17 2020-10-13 莫崇规 自紧免丝螺母

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